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Home >> Volvo >> 1991 >> 940 GLE, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Notes

Computerized Engine Controls: Notes

CAUTION: Ensure ignition switch is in OFF position before disconnecting or connecting ignition or fuel injection Electronic Control Unit (ECU). Otherwise, damage to ECU can result.
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